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Synthesis of the anti and syn Isomers of Thieno[ f , f ‘]bis[1]benzothiophene. Comparison of the Optical and Electrochemical Properties of the anti and syn Isomers 1

✍ Scribed by Wex, Brigitte; Kaafarani, Bilal R.; Kirschbaum, Kristin; Neckers, Douglas C.

Book ID
121495033
Publisher
American Chemical Society
Year
2005
Tongue
English
Weight
153 KB
Volume
70
Category
Article
ISSN
0022-3263

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The title compounds, new members in the class of tris-annelated benzenes with [2.2.1] bicyclic rings, were obtained in high yields by coupling of 2-bromo-3-trimethyltin-5,6-dimethylenenorborn-2-ene with copper(I) 2-thiophenecarboxylate (CuTC). The syn isomer was reacted with 3 equiv. of the dienophi